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The ring-necked duck (Aythya collaris) is a diving duck from North America commonly found in freshwater ponds and lakes. [3] The scientific name is derived from Greek aithuia , an unidentified seabird mentioned by authors including Hesychius and Aristotle , and Latin collaris , "of the neck" from collum , "neck".
Snow goose Wood ducks Ring-necked duck Common merganser. Order: Anseriformes Family: Anatidae. The family Anatidae includes the ducks and most duck-like waterfowl, such as geese and swans. These birds are adapted to an aquatic existence with webbed feet, bills which are flattened to a greater or lesser extent, and feathers that are excellent at ...
A tufted duck in flight showing the white wingbar. The species are plump, compact, medium-sized ducks ranging from 37–61 cm long, 60–84 cm wingspan, and weighing 410–1600 g, with canvasback the largest, and ring-necked duck and ferruginous duck marginally the smallest.
White-backed duck: Thalassornis leuconotus Eyton, 1838: 9 ... Ring-necked duck: Aythya collaris (Donovan, 1809) 139 Tufted duck: Aythya fuligula (Linnaeus, 1758) 140
This is a list of the breeds of domestic duck which have official recognition at national or international level. [1]Most breeds of duck derive from the wild mallard, Anas platyrhynchos, while a small minority are descendants of the Muscovy duck, Cairina moschata.
Historically, the white-winged duck was widely distributed from northeastern India and Bangladesh, throughout South East Asia to Java and Sumatra. It is now extinct in Java. In India, the duck is found only in the northeastern part of the country, with the main concentration in eastern Assam and adjacent areas of Arunachal Pradesh. [9]
Hybrid ducks of the genus Aythya include birds that are a mixture of tufted duck, greater scaup, pochard, ferruginous duck and ring-necked duck. List of duck hybrids: Northern pintail × mallard; Ruddy duck × white-headed duck; Ruddy shelduck × shelduck; White-faced whistling duck × plumed whistling duck; Baikal teal × northern pintail ...
Other extinctions and declines are attributable to overhunting, habitat loss and modification, and hybridisation with introduced ducks (for example the introduced ruddy duck swamping the white-headed duck in Europe). Numerous governments and conservation and hunting organisations have made considerable progress in protecting ducks and duck ...